Naniwa Abrasive Mfg. Co. Ltd. is a specialist Japanese manufacturer of sharpening stones for the industrial and consumer markets. We rate their honing stones highly.
1k (1,000) grit stone -ideal for rapid metal removal from ragged edges, chip and 'ding' removal, and setting a new bevel to the razor's edge. The stone has good 'feel', and this grit leaves a satin finish much smoother than many comparable hones. Stand available separately.
3k (3,000) grit stone -much smoother in 'feel' to the 1k grit stone, this hone is ideal for use on blades where, although the edge may be a little rough, there is not a great deal of metal to be removed in order to restore a continuous and smooth edge. Also good at bevel setting. Stand available separately.
8k (8,000) grit stone - a superb polish is easily attained with use of this stone on a 'progressively' honed edge -quite remarkable for an 8k grit. Can also be used as a slightly more aggressive hone than the 10k grit in situations where maintenance honing is being carried out and the edge is a little too rough to benefit fully from the 10k hone. Stand...
10k (10,000) grit - this hone leaves a mirror-like finish on the edge that holds good even using a 30x jeweller's loupe (if done properly of course!). A very smooth, buttery hone with plenty of 'feel', this has to be the best 10k hone I have ever used. Stand available separately.
12k (12,000) grit stone - this is the ultimate Naniwa tone for superfine edges. I have used it on many razors and it adds to an already superb finish given by the 10k stone. Ideal for quickly restoring a used edge to a degree of sharpness that is surely hard to rival. An excellent hone. Stand available separately.
This hone is considered by many as the ultimate synthetic finishing stone - the 10k grit Chosera from Naniwa, Japan. This hone uses magnesium as a binder for the abrasive, which is in this case white aluminium oxide.